Specs are quantitative aspects of the option such as the price
Pros
Pro
Correct and repeatable builds
Builds only use input files that are explicitly declared in the build specification. On Linux, Bazel runs tools in a sandboxed environment that contain only the minimum necessary files required.
Tried to build Tensorflow with updated Bazel? You may be out of luck, recently it could only be compiled with only a single (and not the most fresh) version of Bazel.